165 MAF Computer

[Programmer]

Here's another question--could it be differences in
code between a $32 and $6E that are the key ???

Lyndon.
----- Original Message -----
From: romans, mark <romans at starstream.net>
To: <gmecm at diy-efi.org>
Sent: Friday, June 29, 2001 9:52 PM
Subject: Re: 165 MAF Computer


> I've done a few hundred chips, mostly for my car and a few friends
> cars.  All of these cars have modified maf sensors.  At minimum the
> screens are removed, at most the heat sinks too.
> The ecm software is limited to 255 grams/sec.  The maf sensor will
> flow more air than that, but the software can't read it.
> My stock 87 vet would read up to 208 grams/sec, it ran 14.2 at 101 best.
> I now have a 355 with Superram, Hot LT4 cam, TPIS headers, ported heads
> and I max out the maf at about 4700 rpms.  Above that, since the maf is no
> longer reading air flow the system becomes alpha n.
> When a larger or more air flow system is used the maf pegs out earlier.
> If your maf is reading properly and you are only reading 175 grams/sec
then
> your system just isn't flowing much air.
>
> My car makes a bit over 300 rwhp, my best now is a severely traction
limited
> 13.4 @ 107.7 mph.
>
> I don't know where the 175 grams/sec came from, but I can guarantee it's
> horse
> pucky!
>
> Mark
>
> ----- Original Message -----
> From: "NickG" <nikog at mediaone.net>
> To: <gmecm at diy-efi.org>
> Cc: <nwester at eidnet.org>
> Sent: Friday, June 29, 2001 8:14 PM
> Subject: Re: 165 MAF Computer
>
>
> > I've helped a friend reprogram his '87 Vette with a built up 406. His
> stock
> > ported MAF maxes out at 255g/s at around 4000rpm (as reported in
Diacom).
> > The only thing I can think of that might make a difference is that he's
> got
> > the GM replacement ECM for the '165 (don't remember the number off-hand)
> and
> > running ARAP code as a base.
> >
> > Nick
> >
> > > Hey guys...I'd like to know something, as I just withstood a
> > > tongue lashing that kinda makes sense--yet I've heard otherwise
> > > here.
> > >
> > > The '165 MAF only computer is limited to sensing 175 grams per second,
> > > maximum power is around 200 HP and that's it. This is the word from
one
> > > of the original guys that made ACCEL's DFI system.True or horsepucky ?
> > >
> > > I've had a go-round with a customer for the past 6 months, we've tried
> to
> > > get his rig up to snuff through the past 20 mailed out chips. Low
speed
> > > driveability is excellent--but his 1/4 mile sucks.
> > > For the parts this S10 TPI thing has in it, it should just fly. I'd
have
> > to
> > > say at this
> > > point--forget the '165 if you're trying to make power, and put in a
> '730.
> > >
> > > Lyndon.
> >
> >
>
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